Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c81951680e34cf…

MALICIOUS

PDF

75.1 KB Created: 2021-02-20 13:48:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d33859ce05535e5ad02ac15c3dd47c77 SHA-1: a371da50cd9b483d892f18e001d3572d5f14c0e5 SHA-256: e6c81951680e34cf7d50fd257b0c2d8067a1397ac17d375db7ded8d3c75175f3
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF document contains heuristics indicating an advance-fee scam lure, combined with an embedded URL pointing to a 'poweramp unlocker apk mod'. This suggests the document is designed to trick the user into downloading a malicious application, likely by impersonating a software utility. The presence of multiple unknown URLs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/wix?keyword=poweramp+unlocker+apk+mod
    • http://allostar.buzz/offer_to_buying_house_without_realtor_canadapaed5.pdf
    • http://yandex-dostav.ru/rilasetosu7f0es.pdf
    • http://org-fruit.space/will_there_be_a_sequel_to_snow_white_and_the_huntsmanjp1ec.pdf
    • http://winoraama.fun/criteria_of_brain_deathvucu6.pdf
    • https://cdn-cms.f-static.net/uploads/4381297/normal_601f9a98098ab.pdf
    • http://vashe-zdorovie.xyz/tajasipebarekoufbv8.pdf
    • http://bahis-sikayet.com/kenmore_dryer_not_heating_enoughwron1.pdf
    • https://static.s123-cdn-static.com/uploads/4390074/normal_5ff6abf3b1ee2.pdf
    • http://awpmode.com/zekusd9f30.pdf
    • http://raffle.website/15803219591wyvc6.pdf
    • https://static.s123-cdn-static.com/uploads/4488316/normal_5ff1214c5f2a2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/murudute/diabetes_management_guidelines_ada.pdf
    • https://s3.amazonaws.com/punurum/class_12_result_2076_with_grade_sheet.pdf
    • https://s3.amazonaws.com/gogunabones/arjun_reddy_movie_bgm_naa.pdf
    • https://s3.amazonaws.com/tanikanaw/jabinojemat.pdf
    • https://s3.amazonaws.com/kosipefojaw/jakepekujunowobun.pdf
    • https://s3.amazonaws.com/kufazete/sebigok.pdf
    • https://s3.amazonaws.com/xujitezu/bloomberg_new_energy_finance_report_2016.pdf
    • https://s3.amazonaws.com/fajetufekejo/30432087832.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9ec.bin
158a523eb273327f794b5b865d4c7f14ab6ea03e062b1cdf1643929c54ae8781		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9EC 5196 bytes
font_01_sfnt_off0000fb95.bin
ba69765e65a8dbe0109ef09ebc81bf50b0acd97d9d7090d9103efaa0606c4c81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB95 10480 bytes

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